class HouseItem:
    def __init__(self, name, area):
        self.name = name
        self.area = area

    def __str__(self):
        return "%s占地面积%.2f" % (self.name, self.area)


bed = HouseItem("床", 40)
chest = HouseItem("衣柜", 30)
table = HouseItem("餐桌", 4)

print(bed)
print(chest)
print(table)


class House:
    def __init__(self, house_type, area):
        self.house_type = house_type
        self.area = area
        self.free_area = area
        self.item_list = []

    def __str__(self):
        return ("户型：%s\n总面积：%.2f[剩余：%.2f]\n家具：%s"
                % (self.house_type, self.area, self.free_area, self.item_list))

    def add_item(self, item):
        print("要添加%s" % item)
        if item.area > self.free_area:
            print("%s 的面积太大了，无法添加" % item.name)

            return
        self.item_list.append(item.name)
        self.free_area -= item.area


# 创建房子对象
my_home = House("两室一厅", 60)

my_home.add_item(bed)
my_home.add_item(chest)
my_home.add_item(table)

print(my_home)
